Cattle-guard.



PATENTED MAY 3, 1904.

J. CLARKE.

CATTLE GUARD.

APPLIGATION TILED NOV.15, 1902.

N0 MODEL.

- uvnror cjo kn Clarke.

Q human L5 QHOHIMJ Patented IVlfay 3, 1904,

UNITED STATES PATENT @rricn.

JOHN CLARKE, OF ORANGEVI LLE, CANADA.

CATTLE-GUARD.

SPECIFICATION forming part of Letters Patent N0. 759,156, dated May 3, 1904.

Application filed November 15, 1902. Serial No. 131,496- (No model.)

To all whom it may concern:

Be it known that I, JOHN CLARKE, a subject of the King of Great Britain, residing at Orangeville, in the Province of Ontario and Dominion of Canada, have invented certain new and useful Improvements in Cattle- Guards; and I do hereby declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same.

The object of my invention is to construct an exceedingly simple form of stock-guards or barriers for railways, the operation of which will be entirely automatic.

lln use the normal position of the device will prevent the passage of stock and the like; but upon approach of a train the device will be automatically swung downward or out of position until the passage of the train, when the device will immediately resume its normal position. The device is so constructed that it may be operated upon approach of a train not only from one direction, but from either direction, upon the same track, thus adapting it to either single or double track railways.

Il n the accompanying drawings, forming a part of the specification, and in which draw-.

ings like letters of reference indicate corresponding parts in the several views, Figure 1 is a perspective View of a section of a railway equipped with my said invention; and Fig. 2 is an elevation of the same, partly in section.

Referring to the drawings, A A designate the railway-rails, pivotally mounted and extending across which is a barrier comprising a rod B and a plurality of radially-disposed pales I), located both between the rails and upon the outside thereof. Upon one end of the rod B is a bevel-gear b Suitably journaled in brackets or the like (1 C is a rock-shaft D, extending some distance along the railway upon each side of the rod B and provided with a bevel-gear 0, preferably of greater diameter than and meshing with the bevel-gear 6 upon the rod B. Located, preferably, adjacent the bevel-gear 0 upon the rock-shaft D is a counterweight 0 E is an angle-iron bar running parallel to one of the rails and secured against displace ment by bolts 6 a, vertical motion only being permitted to the bar E relative to the railwayrail.

Depending from the bar E near each end thereof are rods a e, and connected to the lower ends of the rods 0 c are levers c c, piw oted on rods 6 c, suitably journaled between the cross-ties. Upon the free ends of the levers e e are pivotally-connected links (2 a, and pivotally connected to the upper ends of the links 0 c are cranks e 6, carried upon the rock-shaft D. Any number of these connections may be interposed between the angleiron bar E and the rock-shaft D as may be desired, three of such connections being shown in the drawings, one near each end of the bar and one near the center thereof.

In the normal position of the device the rod B will be so disposed that the laterallyprojecting pales b will stand vertically. At this time the angle-bar E will be at its highest point of elevation and the counterweight 0 will be exerting its force upon the rockshaft D to retain said parts in such position. However, when the angle-iron bar E is de pressed the rods 0 will impart a downward motion to the adjacent end of the levers c e", which in turn, through the links c and cranks c a, will partially rotate the rock-shaft D, causing the bevel-gear c to impart rotary motion to the bevel-gear 5 upon the rod B, thereby causing the pales 6 carried thereby to be depressed below the rails to provide sufli cient clearance for the passing train or other object. As the angle-bar E extends for some little distance upon each side of the guard or barrier, the guard will be depressed before the passage of the train thereover and will be retained in its depressed position until the last wheels of the train have passed upon the opposite side of the guard. When this occurs, the rock-shaft D, under the influence of the countel-weight c acting upon the bevel-gear a, will rotate the bevel-gear 72 in a direction the reverse to thatin which they were rotated upon the depressing of the angle-iron bar E,causing the pales I) again to assume a vertical position. Thus it will be seen that under normal conditions the guard will be an effective barrier against the passage of cattle or the like over tions, or, if preferred, other parts of the device may be so proportioned as to efiect the same result.

Any suitable means may be employed for returning the parts to their normal position, it being obvious that while I have shown a weight for this purpose any appropriate means, such as springs or the like, may be adopted. It is also obvious that many changes and modifications might suggest themselves to those skilled in the art, which changes and modifications could be made without departing from the spirit of my invention, it being understood that while I have illustrated my invention as embodied in one form I do not limit myself thereto.

Having thus fully described my invention, what I claim as new, and desire to secure by Letters Patent of the United States, is-

1. A stock-guard for railways and the like, comprising a falling barrier disposed transversely of the rails, a bar disposed parallel to one of the rails, a rock-shaft, means connecting the bar with the rock-shaft, a bevel-gear on the rock-shaft meshing with a bevel-gear on one of the lower ends of the barrier, and a weight on the rock-shaft, all cooperating substantially as and for the purpose specified.

2. A stock-guard for railways and the like, comprising a falling barrier disposed transversely of the rails, a bar disposed parallel to one of the rails, a rock-shaft, a lever connecting the bar with the rock-shaft, a bevel-gear on the rock-shaft meshing with 'a bevel-gear on one of the lower ends of the barrier, and a weight on the rock-shaft, all cooperating substantially as and for the purpose specified.

3. A stock-guard for railways and the like, comprising a falling barrier disposed transversely of the rails, a bar disposed parallel to one of the rails, a rock-shaft, a lever pivoted on a rod and connecting the bar with the rockshaft, a bevel-gear on the rock-shaft meshing with a bevel-gear on one of the lower ends of the barrier, and a weight on the rock-shaft, all cooperating substantially as and for the purpose specified.

4. A stock-guard for railways and the like, comprising a falling barrier disposed transversely of the rails, a bar disposed parallel to one of the rails, a rock-shaft, a lever pivoted on a rod and, through the medium of a link and crank, connecting the bar with the rockshaft, a bevel-gear on the rock-shaft meshing with a bevel-gear on one of the lower ends of the barrier, and a weight on the rock-shaft, all cooperating substantially as and for the purpose specified.

5. A stock-guard for railways and the like, comprising a falling barrier disposed transversely of the rails, a bar disposed parallel to one of the rails, a rock-shaft, a plurality of levers pivoted on rods and connecting the bar with the rock-shaft, a bevel-gear on the rockshaft meshing with a bevel-gear on one of the lower ends of the barrier, and a weight on the rock-shaft, all cooperating substantially as and for the purpose specified.

In testimony whereof I aifix my signature in the presence of two subscribing witnesses.

JOHN CLARKE.

Witnesses:

O. S. WILSON, J. L. ISLAND. 

